public function testCantDesiccateTreeWithoutAllRelationsPersisted()
{
$desiccator = new TreeDesiccator();
$tree = M::mock('Gittern\\Entity\\GitObject\\Tree');
$node_mock = M::mock('Gittern\\Entity\\GitObject\\Node\\TreeNode', array('getOctalModeString' => '040000', 'getName' => 'abacus'));
$node_mock->shouldReceive('getRelatedObject')->andReturn($node_mock);
$node_mock->shouldReceive('getSha')->andReturn(null);
$tree->shouldReceive('getNodes')->andReturn(array($node_mock));
$desiccator->desiccate($tree);
}